Casting device for mine car hub

Abstract

The invention discloses a mine car hub casting device, and belongs to the technical field of metal casting, the mine car hub casting device comprises a lower die, an upper die, a middle die and a partition die, a casting forming cavity is formed among the lower die, the upper die, the middle die and the partition die, the lower die comprises a bottom support and a pouring shell, the pouring shell is fixed at the center position of the inner side of the bottom support, and the partition die is fixed on the bottom support. According to the casting mold, the pouring shell guides molten metal to enter from the large-range pouring groove in the bottom layer area of the casting forming cavity, accumulated gas generated by the molten metal entering from the lower portion is discharged upwards through the exposed ventilation groove, and after the casting forming cavity is filled with the molten metal, the profiling sand core is pushed by the molten metal to rotate on the inner side of the upper mold; and the molten metal in the upper-layer area of the casting forming cavity is disturbed to adjust the state of the molten metal, meanwhile, accumulated gas escaping in the upper half area of the casting forming cavity is subjected to extrusion treatment, non-escaping gas and gas films in all areas in a metal casting mold are treated, and exposed air holes in the surface of the mine car hub casting are eliminated.

Description

Technical Field

[0001] The invention relates to the technical field of metal casting, and in particular to a casting device for a mine wheel hub. Background Art

[0002] The wheel hub of the mine wheel is mass-produced by metal casting. The molten metal is injected into the metal mold that matches the shape of the mine wheel hub through the pouring gate. The molten metal gradually fills the molding cavity inside the mold from bottom to top. The molten metal is cooled and shaped in the molding cavity to form a mine wheel hub casting. The high-temperature molten metal is directly poured into the metal mold. The high-temperature molten metal continuously flushes the inner wall of the metal mold in the molding cavity, so that the gas generated by the molten metal does not have time to overflow from the metal mold, resulting in exposed pores on the surface of the mine wheel hub casting. The invention patent with announcement number CN104907535B discloses an aluminum alloy wheel hub casting mold, which transfers bubbles through exhaust lines and air collecting blind holes to reduce pores on the surface of the molded casting. In addition, there are also measures in the prior art to increase the exhaust channel to strengthen the air entrainment during the pouring process and eliminate the pores in the end face area of ​​the hub casting. However, during the molten metal pouring process, the gas generated by the first pouring of the molten metal has a long time to escape, while the gas generated by the later pouring of the molten metal has insufficient time to escape, so that the later generated gas is still in the upper area of ​​the molding cavity, and the accumulated gas and the un-escaped gas in the upper area of ​​the molding cavity cannot be effectively treated, so that the gas accumulates in the ribs and outer edge of the upper half of the wheel hub casting, and the accumulated gas and the generated gas film are easily dispersed into the surface shell of the mine wheel hub casting that has not been fully solidified, thereby failing to effectively eliminate the exposed pores on the surface of the mine wheel hub casting, affecting the casting effect of the mine wheel hub. Summary of the invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a casting device for a mine wheel hub, which guides the molten metal to enter from a large-scale pouring groove in the bottom area of ​​the casting molding cavity by arranging a pouring shell, and the exposed air permeable groove discharges the accumulated gas generated by the molten metal entering from the bottom upward, thereby expanding the runner and the exhaust channel, and at the same time increasing the auxiliary exhaust channel. After the molten metal fills the casting molding cavity, part of the poured molten metal is diverted to the temporary storage space on the outer edge sand core, and the contoured sand core is pushed by the molten metal to rotate on the inner side of the upper mold, thereby disturbing the molten metal in the upper area of ​​the casting molding cavity to adjust the state of the molten metal, and at the same time squeezing and processing the accumulated gas dissipated in the upper half of the casting molding cavity, processing the non-dissipated gas and gas film in various areas of the metal casting mold, and eliminating the exposed pores on the surface of the mine wheel hub casting, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: A casting device for a mine wheel hub, comprising a lower die, an upper die, a middle die and a partition die, wherein a casting molding cavity is formed between the lower die, the upper die, the middle die and the partition die, wherein the lower die comprises a bottom support and a pouring shell, wherein the pouring shell is fixed at the center position of the inner side of the bottom support, wherein the upper die is closed at the top of the bottom support through the pouring shell, wherein the bottom support and the pouring shell are provided with a connected pouring groove; wherein the middle die comprises an outer edge sand core, a guide ring, a profiling sand core, a downward pressure sand core and a splicing block, wherein the outer edge sand core and the guide ring are connected from top to bottom through the downward pressure sand core The lower part is positioned on the inner wall of the upper mold, the profiling sand core is molded on the inner side of the outer edge sand core, the guide ring and the lower pressure sand core, and the four splicing blocks are clamped and positioned on the inner side of the upper mold, the splicing block is separated from the inner side wall of the profiling sand core to discharge upward the accumulated gas generated by the molten metal entering the casting molding cavity from below, and the profiling sand core is pushed by the molten metal to rotate on the inner side of the upper mold to deal with the accumulated gas escaping from the upper half of the casting molding cavity; the number of the partition molds is six, and the six partition molds are fixed on the inner side wall of the bottom support in a ring shape.

[0005] Furthermore, the upper mold is snap-connected to the outside of the casting shell, and the bottom of the upper mold is clamped on the top of the base.

[0006] Furthermore, the outer edge sand core is fixedly connected to the bottom of the downward pressure sand core, the guide ring is fixedly connected to the bottom of the outer edge sand core, the contoured sand core is clamped on the inner side wall of the outer edge sand core, the guide ring and the downward pressure sand core, the bottom of the guide ring is clamped on the top of the base, and the top of the downward pressure sand core is clamped on the inner wall of the upper mold.

[0007] Furthermore, a docking block is fixedly connected to the bottom edge portion of the outer side wall of the contoured sand core, and the docking block is slidably connected to the inside of the guide ring. A baffle is fixedly connected to the inside of the outer edge sand core, and the baffle is located behind the docking block. The bottom end of the baffle is fixedly connected to the inside of the guide ring.

[0008] Furthermore, two connection blocks are fixedly connected to the outer side wall of the splicing block, and the connection blocks are snap-connected to the inside of the profiling sand core.

[0009] Furthermore, four air-permeable grooves corresponding to the splicing blocks are provided on the profiling sand core, and the splicing blocks are snap-connected to the inner side wall of the profiling sand core.

[0010] Furthermore, four perforated air blocks corresponding to the splicing blocks are fixedly connected inside the upper mold, the perforated air blocks are snap-connected inside the downward pressure sand core, and the bottom ends of the perforated air blocks are connected to the corresponding air grooves.

[0011] Furthermore, a shunt pipe is fixedly connected to the top of the upper mold, the input end of the shunt pipe is plugged into the casting shell, a temporary storage space corresponding to the shunt pipe is opened inside the outer edge sand core, and the output end of the shunt pipe is plugged into the temporary storage space.

[0012] Furthermore, the top of the casting shell is located above the upper mold, and a clearance groove is provided on the casting shell, and the clearance groove is connected to the pouring groove to ensure that the molten metal is poured into the casting molding cavity.

[0013] Furthermore, a column is fixedly connected inside the partition mold, the top end of the column is closely attached to the inner wall of the contoured sand core, and the bottom end of the column is closely attached to the inner wall of the base.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a combined lower mold, an upper mold, a middle mold and a plurality of partition molds, and after the molds are closed in sequence, a casting molding cavity adapted to the shape of a mine wheel hub is formed, the molten metal is guided by a pouring shell, and enters the inside of the casting molding cavity through a large-scale pouring groove in the bottom area of ​​the casting molding cavity, the splicing block is separated from the inner side wall of the profiling sand core, and the air permeable groove at the corresponding position is exposed to discharge upward the accumulated gas generated by the molten metal entering from the bottom, thereby expanding the runner and the exhaust channel, and at the same time increasing the auxiliary exhaust channel, reducing the accumulation of gas in the edge area of ​​each layer of the casting molding cavity, and the molten metal is discharged in the casting molding cavity. The rise in the cavity can push the splicing block to return to the contoured sand core. After the molten metal fills the casting molding cavity, part of the poured molten metal is diverted to the temporary storage space on the outer edge sand core. The contoured sand core is pushed by the molten metal to rotate on the inner side of the upper mold, which can disturb the molten metal in the upper area of ​​the casting molding cavity to adjust the state of the molten metal, and at the same time squeeze and process the accumulated gas dissipated in the upper half of the casting molding cavity, so as to achieve the effect of processing the undissipated gas and gas film in various areas of the metal casting mold, and eliminate the exposed pores on the surface of the mine wheel hub casting, thereby improving the casting effect and efficiency of the mine wheel hub. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution in the embodiment, the drawings in the embodiment are briefly introduced below.

[0016] Figure 1 It is a product schematic diagram of an existing mine wheel hub; Figure 2 It is a structural schematic diagram of the present invention; Figure 3 It is a schematic cross-sectional structure diagram of the present invention; Figure 4 It is a schematic cross-sectional structure diagram of the mold closing state of the present invention; Figure 5 It is a schematic diagram of the structure of the present invention in a decomposed state.

[0017] In the figure: 1. lower mold; 11. bottom support; 12. casting shell; 121. give way groove; 13. pouring groove; 2. upper mold; 21. permeable block with holes; 22. diverter pipe; 3. middle mold; 31. outer edge sand core; 311. baffle; 32. guide ring; 33. contour sand core; 331. docking block; 332. permeable groove; 34. lower pressure sand core; 35. splicing block; 351. connecting block; 36. temporary storage space; 4. partition mold; 41. column; 5. casting molding cavity. DETAILED DESCRIPTION

[0018] The following is a clear and complete description of the technical solution in the embodiment of the present invention in conjunction with the accompanying drawings in the embodiment of the present invention. Figures 1 to 5 The detailed description of the structure will clearly show that the structural contents mentioned in the following embodiments are all based on the drawings in the specification.

[0019] See also Figure 1 to Figure 5 In an embodiment of the present invention, a casting device for a mine wheel hub includes a lower mold 1, an upper mold 2, a middle mold 3 and a partition mold 4. A casting molding cavity 5 is formed between the lower mold 1, the upper mold 2, the middle mold 3 and the partition mold 4. The lower mold 1 includes a bottom support 11 and a pouring shell 12. The pouring shell 12 is fixed at the inner center of the bottom support 11. The upper mold 2 is molded on the top of the bottom support 11 through the pouring shell 12. A connected pouring groove 13 is opened on the bottom support 11 and the pouring shell 12. The middle mold 3 includes an outer edge sand core 31, a guide ring 32, a profiling sand core 33, a downward pressure sand core 34 and a splicing block 35. The outer edge sand core 31 and the guide ring 32 are connected to each other. The guide ring 32 is positioned on the inner wall of the upper mold 2 from top to bottom through the downward pressure sand core 34, the profiling sand core 33 is molded on the inner side of the outer edge sand core 31, the guide ring 32 and the downward pressure sand core 34, and the four splicing blocks 35 are clamped and positioned on the inner side of the upper mold 2, the splicing block 35 is separated from the inner wall of the profiling sand core 33 to discharge upward the accumulated gas generated by the molten metal entering the casting molding cavity 5 from below, the profiling sand core 33 is pushed by the molten metal to rotate on the inner side of the upper mold 2 to deal with the accumulated gas dissipated in the upper half of the casting molding cavity 5, the number of partition molds 4 is six, and the six partition molds 4 are fixed on the inner wall of the base 11 in a ring shape.

[0020] The middle mold 3 is molded inside the upper mold 2, and six partition molds 4 are arranged in a ring shape and equidistantly inside the lower mold 1. The upper mold 2 is molded together with the middle mold 3 to the top of the lower mold 1, so that the lower mold 1, the upper mold 2, the middle mold 3 and the six partition molds 4 cooperate to form a metal casting mold adapted to the shape of the mine wheel hub. A casting molding cavity 5 matching the shape of the mine wheel hub is formed between the lower mold 1, the upper mold 2, the middle mold 3 and the partition mold 4, and the molten metal enters the casting molding cavity 5 to cast the mine wheel hub inside the casting molding cavity 5.

[0021] The lower mold 1 is composed of a base 11 and a casting shell 12. The casting shell 12 is fixedly connected to the inner center of the base 11 so that the casting shell 12 extends upward to the outside of the base 11. When the upper mold 2 approaches the lower mold 1 from above, the upper mold 2 can be clamped to the outside of the casting shell 12, and the upper mold 2 moves vertically downward along the surface of the casting shell 12, so that the bottom of the upper mold 2 is clamped on the top of the base 11, so as to effectively complete the fixed-point clamping operation of the upper mold 2 on the top of the lower mold 1. After the upper mold 2 is clamped to the top of the lower mold 1, the top of the casting shell 12 is located above the upper mold 2, so that the molten metal can be poured in from the pouring port at the top of the casting shell 12. The base 11 and the casting shell 12 are provided with a connected pouring groove 13, which is guided by the casting shell 12, so that the molten metal can enter the casting molding cavity 5 through the connected large-range pouring groove 13, and effectively guide the pouring operation of the molten metal into the casting molding cavity 5. The pouring shell 12 is provided with a clearance groove 121, which is connected to the pouring groove 13 to ensure that the molten metal is smoothly poured into the casting molding cavity 5. A column 41 is fixedly connected inside the partition mold 4, the top end of the column 41 is close to the inner wall of the profiling sand core 33, and the bottom end of the column 41 is close to the inner wall of the bottom support 11, which can effectively locate and connect the partition mold 4 at a designated position inside the lower mold 1.

[0022] The middle mold 3 is composed of an outer edge sand core 31, a guide ring 32, a profiling sand core 33, a pressing sand core 34 and a splicing block 35. The outer edge sand core 31 is fixedly connected to the bottom of the pressing sand core 34, the guide ring 32 is fixedly connected to the bottom of the outer edge sand core 31, the profiling sand core 33 is clamped on the inner side wall of the outer edge sand core 31, the guide ring 32 and the pressing sand core 34, and the profiling sand core 33 is positioned inside the outer edge sand core 31, the guide ring 32 and the pressing sand core 34. The top of the pressing sand core 34 is clamped on the inner wall of the upper mold 2, which is convenient for assembling the middle mold 3 inside the upper mold 2, and the bottom of the guide ring 32 is clamped on the top of the bottom bracket 11, so as to stably close the middle mold 3 together with the upper mold 2 on the top of the lower mold 1. There are four splicing blocks 35, and two connecting blocks 351 are fixedly connected to the outer wall of the splicing block 35. The connecting blocks 351 are snap-connected inside the profiling sand core 33, and can clamp and position the four splicing blocks 35 on the inner side of the profiling sand core 33, so as to position the four splicing blocks 35 on the inner side of the upper mold 2. The profiling sand core 33 is provided with four air-permeable grooves 332 corresponding to the splicing blocks 35, and the upper mold 2 is fixedly connected with four air-permeable blocks 21 with holes corresponding to the splicing blocks 35. The air-permeable blocks 21 with holes are snap-connected inside the lower pressure sand core 34, and the bottom end of the air-permeable blocks 21 with holes is connected to the corresponding air-permeable grooves 332, and the gas in the casting molding cavity 5 can be auxiliary discharged through the air-permeable grooves 332 and the air-permeable blocks 21 with holes. The inner side wall of the profiling sand core 33 is provided with a profiling receiving groove corresponding to the splicing block 35. The splicing block 35 is pushed by the rising molten metal and can be clamped upward inside the corresponding profiling receiving groove on the inner side wall of the profiling sand core 33, effectively restoring the matching casting molding cavity 5 of the mine wheel hub casting, ensuring the molding of the mine wheel hub casting in the casting molding cavity 5.

[0023] A shunt pipe 22 is fixedly connected to the top of the upper mold 2, and the input end of the shunt pipe 22 is plugged into the casting shell 12. A temporary storage space 36 corresponding to the shunt pipe 22 is provided inside the outer edge sand core 31, and the output end of the shunt pipe 22 is plugged into the temporary storage space 36, so that part of the molten metal can be guided into the temporary storage space 36 on the outer edge sand core 31 through the shunt pipe 22. A docking block 331 is fixedly connected to the bottom edge of the outer side wall of the profiling sand core 33, and the docking block 331 is slidably connected to the inside of the guide ring 32. A baffle 311 is fixedly connected to the inside of the outer edge sand core 31, and the baffle 311 is located behind the docking block 331, and the bottom end of the baffle 311 is fixedly connected to the inside of the guide ring 32. The molten metal enters the temporary storage space 36 and gradually fills the temporary storage space 36. The molten metal impacts the docking block 331, so that the docking block 331 can move inside the guide ring 32 along the inner wall of the guide ring 32, so that the profiling sand core 33 can rotate along the inner wall of the outer edge sand core 31, the guide ring 32 and the downward pressure sand core 34, thereby realizing the movement of the profiling sand core 33.

[0024] The combined lower mold 1, upper mold 2, middle mold 3 and six partition molds 4 are molded in sequence to form a casting molding cavity 5 adapted to the shape of a mine wheel hub. The molten metal is guided by the pouring shell 12, enters the inside of the casting molding cavity 5 through the large-scale pouring groove 13 in the bottom area of ​​the casting molding cavity 5, and gradually rises inside the casting molding cavity 5 to form the mine wheel hub casting through the casting molding cavity 5. The splicing block 35 is separated from the inner side wall of the profiling sand core 33, exposing the ventilation groove 332 at the corresponding position to discharge the accumulated gas generated by the molten metal entering from the bottom upward, expanding the runner and exhaust channel, and adding an auxiliary exhaust channel, which can improve the outward dissipation effect and efficiency of the gas and reduce the accumulation of gas in the edge area of ​​each layer of the casting molding cavity 5. The rising of the molten metal in the casting molding cavity 5 can push the splicing block 35 to restore to the profiling sand core 33. After the molten metal fills the casting molding cavity 5, part of the poured molten metal is diverted to the temporary storage space 36 on the outer edge sand core 31. The profiling sand core 33 is pushed by the molten metal to rotate on the inner side of the upper mold 2, which can disturb the molten metal in the upper area of ​​the casting molding cavity 5 to adjust the state of the molten metal and improve the mixing effect of the molten metal that enters successively. At the same time, the profiling sand core 33 can squeeze and process the accumulated gas that escapes in the upper half of the casting molding cavity 5, and avoid the formation of a gas film between the upper half of the mine wheel hub casting and the metal mold because the gas fails to escape, so as to achieve the effect of processing the unescaped gas in each area of ​​the metal mold and eliminating the exposed pores on the surface of the mine wheel hub casting, thereby improving the casting effect and casting efficiency of the mine wheel hub.

[0025] The working principle of the present invention is as follows: the lower mold 1, the upper mold 2, the middle mold 3 and the six partition molds 4 are molded in sequence to form a metal mold adapted to the shape of the mine wheel hub, and a casting molding cavity 5 adapted to the shape of the mine wheel hub is formed in the metal mold. The molten metal is poured in from the pouring gate at the top of the pouring shell 12, and the pouring shell 12 guides the molten metal downward through the large-scale pouring groove 13 located in the bottom area of ​​the casting molding cavity 5 to enter the inside of the casting molding cavity 5. The molten metal gradually rises inside the casting molding cavity 5, and the accumulated gas generated by the molten metal inside the casting molding cavity 5 is discharged upward from the exposed venting groove 332, which assists the discharge of the accumulated gas. The molten metal rises in the casting molding cavity 5 and pushes the splicing block 35 to recover on the profiling sand core 33. After the molten metal fills the casting molding cavity 5, part of the poured molten metal is diverted to the temporary storage space 36 on the outer edge sand core 31. The profiling sand core 33 is pushed by the molten metal to rotate on the inner side of the upper mold 2, and the molten metal is disturbed from the upper area of ​​the casting molding cavity 5 to adjust the mixing state of the molten metal. At the same time, the profiling sand core 33 squeezes and processes the accumulated gas dissipated in the upper half of the casting molding cavity 5, processes the gas that cannot be dissipated and the gas film formed by the gas that cannot be dissipated, and eliminates the exposed pores on the surface of the mine wheel hub casting.

[0026] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A casting device for a mine wheel hub, characterized in that: The casting mold comprises a lower mold (1), an upper mold (2), a middle mold (3) and a partition mold (4); a casting molding cavity (5) is formed between the lower mold (1), the upper mold (2), the middle mold (3) and the partition mold (4); the lower mold (1) comprises a base (11) and a casting shell (12); the casting shell (12) is fixed at the inner center position of the base (11); the upper mold (2) is molded on the top of the base (11) through the casting shell (12); and a connected casting groove (13) is provided on the base (11) and the casting shell (12); The middle mold (3) comprises an outer edge sand core (31), a guide ring (32), a profiling sand core (33), a lower pressure sand core (34) and a splicing block (35); the outer edge sand core (31) and the guide ring (32) are positioned on the inner wall of the upper mold (2) from top to bottom via the lower pressure sand core (34); the profiling sand core (33) is molded on the inner sides of the outer edge sand core (31), the guide ring (32) and the lower pressure sand core (34) and clamps and positions the four splicing blocks (35) on the inner side of the upper mold (2); the splicing block (35) is separated from the inner side wall of the profiling sand core (33) to discharge upward the accumulated gas generated by the molten metal entering the casting molding cavity (5) from below; the profiling sand core (33) is driven by the molten metal to rotate on the inner side of the upper mold (2) to handle the accumulated gas dissipated in the upper half of the casting molding cavity (5); The number of the partition moulds (4) is six, and the six partition moulds (4) are fixed in a ring shape on the inner side wall of the base (11).

2. A casting device for a mine wheel hub according to claim 1, characterized in that: The upper mold (2) is snap-connected to the outside of the casting shell (12), and the bottom of the upper mold (2) is snap-fitted to the top of the base (11).

3. A casting device for a mine wheel hub according to claim 1, characterized in that: The outer edge sand core (31) is fixedly connected to the bottom of the downward pressure sand core (34), the guide ring (32) is fixedly connected to the bottom of the outer edge sand core (31), the contour sand core (33) is clamped on the inner side walls of the outer edge sand core (31), the guide ring (32) and the downward pressure sand core (34), the bottom of the guide ring (32) is clamped on the top of the base (11), and the top of the downward pressure sand core (34) is clamped on the inner wall of the upper mold (2).

4. A casting device for a mine wheel hub according to claim 1, characterized in that: A docking block (331) is fixedly connected to the bottom edge portion of the outer side wall of the profiling sand core (33), the docking block (331) is slidably connected to the inside of the guide ring (32), a baffle (311) is fixedly connected to the inside of the outer edge sand core (31), the baffle (311) is located behind the docking block (331), and the bottom end of the baffle (311) is fixedly connected to the inside of the guide ring (32).

5. The casting device for a mine wheel hub according to claim 1, characterized in that: Two connection blocks (351) are fixedly connected to the outer side wall of the splicing block (35), and the connection blocks (351) are snap-fitted and connected to the interior of the profiling sand core (33).

6. A casting device for a mine wheel hub according to claim 1, characterized in that: The profiling sand core (33) is provided with four air-permeable grooves (332) corresponding to the splicing blocks (35), and the splicing blocks (35) are snap-fitted and connected to the inner side wall of the profiling sand core (33).

7. A casting device for a mine wheel hub according to claim 6, characterized in that: Four perforated air-permeable blocks (21) corresponding to the splicing blocks (35) are fixedly connected inside the upper mold (2); the perforated air-permeable blocks (21) are snap-fitted and connected inside the lower pressing sand core (34); and the bottom ends of the perforated air-permeable blocks (21) are connected to the corresponding air-permeable grooves (332).

8. The casting device for a mine wheel hub according to claim 1, characterized in that: A shunt pipe (22) is fixedly connected to the top of the upper mold (2), the input end of the shunt pipe (22) is plugged into the inside of the casting shell (12), a temporary storage space (36) corresponding to the shunt pipe (22) is opened inside the outer edge sand core (31), and the output end of the shunt pipe (22) is plugged into the inside of the temporary storage space (36).

9. A casting device for a mine wheel hub according to claim 1, characterized in that: The top end of the casting shell (12) is located above the upper mold (2), and a clearance groove (121) is provided on the casting shell (12), wherein the clearance groove (121) is connected to the pouring groove (13) to ensure that the molten metal is poured into the casting molding cavity (5).

10. A casting device for a mine wheel hub according to claim 1, characterized in that: A column (41) is fixedly connected inside the partition mold (4), the top end of the column (41) is closely attached to the inner wall of the contoured sand core (33), and the bottom end of the column (41) is closely attached to the inner wall of the base (11).

Images